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Syscia sabahna
| Syscia sabahna | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Dorylinae |
| Genus: | Syscia |
| Species: | S. sabahna |
| Binomial name | |
| Syscia sabahna Yamane & Mizuno, 2024 | |
This species inhabits good forests. The colony SB06-SKY-06 (type series) was collected from rotting wood, and SB13-SKY-14 from leaf litter. Syscia sp. 9 of SKY collected from Lambir National Park, Sarawak, Borneo (Yamane et al 2021) well agrees with this species.
Photo Gallery
Yamane & Mizuno (2024), Fig. 2. Syscia sabahna, paratype worker: A) habitus in dorsal view B) habitus in profile view C) head in full-face view (arrow: anterior margin of clypeus) D) cinctus and presclerites of gastral segment I (abdominal segment IV) (arrow: narrowed part of presclerite ring). cinc, cinctus; gt1, gastral tergite I (posttergite); ppt, postpetiole; prs, presternite; prt, pretergite; pt, petiole.
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Identification
Body reddish brown with yellowish apical flagellomere of antenna and legs, extensively punctate/punctoreticulate. Antenna with 9 flagellomeres (11 antennomeres). Head in profile view with posterior portion of its ventral margin provided with lamellate flange. Propodeal declivity superficially sculptured and rather shiny, with transverse dorsal carina more or less complete. Petiole slightly longer than broad, postpetiole as broad as long.
This species is differentiated from related Asian species with 11 antennomeres by the following combination of character conditions:
- posterolateral lamellate zone (flange) of head rather developed
- anterior clypeal margin distinctly convex
- posterodorsal carina on propodeal declivity complete or only partly interrupted medially
- cinctus of gastral segment I clearly defined, cross ribbed
- punctation on head dorsum, gastral tergites III and IV very coarse (with ca. 20 large punctures on a line across head dorsum in full-face view)
- in profile view dorsa of petiole, postpetiole and gastral tergite I roundly convex
- subpetiolar process ill-developed, not distinctly produced ventrad
Distribution
Latitudinal Distribution Pattern
Latitudinal Range: 6.2° to 4.5°.
| North Temperate |
North Subtropical |
Tropical | South Subtropical |
South Temperate |
- Source: Yamane & Mizuno, 2024
Distribution based on Regional Taxon Lists
Oriental Region: Malaysia (type locality).
Distribution based on AntMaps
Distribution based on AntWeb specimens
Check data from AntWeb
Countries Occupied
| Number of countries occupied by this species based on AntWiki Regional Taxon Lists. In general, fewer countries occupied indicates a narrower range, while more countries indicates a more widespread species. |
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Estimated Abundance
| Relative abundance based on number of AntMaps records per species (this species within the purple bar). Fewer records (to the left) indicates a less abundant/encountered species while more records (to the right) indicates more abundant/encountered species. |
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Biology
Castes
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- sabahna. Syscia sabahna Yamane & Mizuno, 2024: 5, figs. 2, 3 (w.dq.) MALAYSIA (Sabah).
Type Material
- Holotype: worker, Malaysia, Borneo, Sabah, Crocker Range, Inobong, 23.ii.2006, Sk. Yamane leg., SB06-SKY-06 (24SKYRM-03; ITBC).
- Paratypes: 5 workers & 1 dealate queen, same data as above (24SKYRM-04–09; ITBC, SKYC).